Also, neither Crohnâs disease nor ulcerative colitis is related to food allergies. According to the Crohnâs & Colitis Foundation of America: âPeople with IBD may think they are allergic to foods because they associate the symptoms of IBD with eating.â.
Eczema, also known as dermatitis, describes a group of skin conditions where the skin is irritated or inflamed. There are many different types of eczema - the most common is atopic eczema (also called endogenous eczema). About 1 in 6 children get atopic eczema in the UK, but most grow out of it by their teens.
Allergic reactions to some foods, plants, or even the irritants might also result in the discolored skin patches in various areas of the body. These changes can present as the rashes or raised bumps that normally itch or burn. One common allergy that might cause skin black spots on skin is the eczema. Like certain autoimmune diseases, eczema usually triggers an immune reaction that attacks the skin. The condition can lead to scaly patches and the red bumps that ooze or crust over.